Module cipher

TLS message encryption/decryption interfaces.

Structs

• AeadKey
  A key for an AEAD algorithm.
• BorrowedPlainMessage
  A TLS frame, named TLSPlaintext in the standard.
• Iv
  A write or read IV.
• KeyBlockShape
  How a TLS1.2 key_block is partitioned.
• Nonce
  A nonce. This is unique for all messages on a connection.
• OpaqueMessage
  A TLS frame, named TLSPlaintext in the standard.
• PlainMessage
  A decrypted TLS frame
• UnsupportedOperationError
  An error indicating that the AEAD algorithm does not support the requested operation.

Constants

• NONCE_LEN
  Size of TLS nonces (incorrectly termed “IV” in standard) for all supported ciphersuites (AES-GCM, Chacha20Poly1305)

Traits

• MessageDecrypter
  Objects with this trait can decrypt TLS messages.
• MessageEncrypter
  Objects with this trait can encrypt TLS messages.
• Tls12AeadAlgorithm
  Factory trait for building MessageEncrypter and MessageDecrypter for a TLS1.2 cipher suite.
• Tls13AeadAlgorithm
  Factory trait for building MessageEncrypter and MessageDecrypter for a TLS1.3 cipher suite.

Functions

• make_tls12_aad
  Returns a TLS1.2 additional_data encoding.
• make_tls13_aad
  Returns a TLS1.3 additional_data encoding.